Composition of matter for use as a fertilizer.



' UNITED vsnur'rns PATENT OFFICE."

ERNEST CARL LINDEMANN, or BOULDER, COLORADO.

COMPOSITION OF MATTER FOR USE AS AFERTILIZEB.

No Drawing.

, Specification of Letters Patent.

Patented Apr.1 5 1913.

Application filed November 5; 1912. Serial No. 729,647.

To all whom it may concern Be it known that I, ERNEST CARL LINDE- MANN, a citizen of the United States, residing at Boulder. county of Boulder, and

State of Colorado, have invented certain new and useful Improvements in Composition of Matter for Use as a Fertilizer; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a composition of matter for use as a fertilizer, the said fertilizer being composed of titaniferous iron ore and raw calcium carbonate. These two substances are separately pulverized and then mingled in suitable proportions. Both ingredients should be reduced to a fineness of not less than 1 00 to 150 mesh, or to such a fineness that they will pass through a screen having from 100 to 150 meshes to the square inch. A pulp mill and mixer may be utilized for combining the said ingredients. The mixing operation should be suflicient to render the mass homogeneous throughout.

The proportions of the ingredients employed informing the fertilizer may vary considerably, depending upon the soil upon which the material is to be used'. For instance, from 80 to- 95- per cent. of the raw calcium carbonate may be employed, whilefrom 5 to 20 per cent. of the titaniferous iron ore may be used.- It will, therefore, be understood that I do not wish to limit the invention to precise proportions, since they may be varied within reasonable limits, as above indicated.

In using this fertilizer the quantity re-' quired per acre will depend upon the soil. An alluvial soil will require approximately 650 pounds per acre, while a sandy or aurif erous soil will not need more than 400 to 500 pounds.

In applying the fertilizer it is preferred to introduce it to the ground by the employment of a 'drill having hollow teeth which enter the earth to the required depth,-

.depending upon the character of the soil.

If the surface soil is deep, the fertilizer should be introduced to a greater depth than where the soil is comparatively thin.

Where the subsoil is deep, or at a considerable distance' below the surface, the fert-ilizershould bedrilled in deeperand a larger quantity should be used than where the subsoil is at a less depth.

, Attention is also called to the fact that my i composition is not only an exceedinglyflvalw able fertilizer, but it also drives away or destroys cut-Worms and other vermin accus-' tomed to injure crops by working beneath the surface of the ground. It may be used as well for fertilizing upon the surface. of the ground wheredrllling is inappropriate or impossible; for example, in such crops as alfalfa."

Iclaim is:

1. A fertilizer composed of titaniferous iron ore and raw'calcium carbonate.

2. A- fertilizer composed of titaniferous.

iron ore and raw.calc1um carbonate combined in the proportions by weight of 5 to 20% of tit-aniferous iron ore and to K of raw calcium carbonate.

In testimony whereof I aflix -my signature in presence of two witnesses.

ERNEST CARL LINDEMANN. Witnesses:

EVA L. HALL, MAI (ELE ENTS.

Having thus describedmy invention, what 

